Katherine Gassman, D.O.
NPI 1851653620 · Family Medicine Physician · Bar Harbor, ME
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine Gassman, D.O. is a Family Medicine Physician provider in Bar Harbor, ME (NPI 1851653620).
Provider details
- NPI number
- 1851653620
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- Q4157 (TX)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
14 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 82 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Levothyroxine Sodium | 170 | 42 |
| Atorvastatin Calcium | 155 | 39 |
| Lisinopril | 110 | 25 |
| Sertraline Hcl | 88 | 20 |
| Losartan Potassium | 85 | 23 |
| Amlodipine Besylate | 77 | 20 |
| Metoprolol Tartrate |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$20 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 315 Martin Luther King Jr WayTacoma, WA 98405-4234Phone: (253) 792-6680Fax: (253) 403-2915
Registry dates
- Enumerated
- 2012-06-08
- Last updated
- 2018-03-17
Frequently asked questions
- What is Katherine Gassman's NPI number?
- Katherine Gassman's National Provider Identifier (NPI) is 1851653620, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine Gassman's specialty?
- Katherine Gassman is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Katherine Gassman located?
- Katherine Gassman's practice location on file with NPPES is 322 Main St, Bar Harbor, ME 04609-1648.
- What is Katherine Gassman's phone number?
- The practice phone number listed in the NPPES registry for Katherine Gassman is (207) 288-5119.
- Does Katherine Gassman accept Medicare?
- Katherine Gassman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine Gassman's NPI active?
- Yes — Katherine Gassman's NPI (1851653620) is active in the NPPES registry as of the last update on 2018-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.